—What should I get my mom for her birthday?

—_____ [ ]

A. What about a scarf?

B. No problem.

C. How about at home?

D. What about nine o'clock?

肾盂癌MRI检查，正确的说法是（）

A.与肾盂结石不易鉴别

B.MR易于发现较小的肾盂肿块

C.T₁WI上肿块信号强度低于尿液

D.T₂WI上肿块信号高于尿液

E.T₂WI上肿块信号低于尿液